Druse of cubic fluorite crystals of yellow color, with color zoning, transparent to translucent. Between brilliant and semi-dull luster. These specimens were collected in the dump areas of the material extracted from the mine, in the 70s. Good size and from a classic Catalan locality.

The Sant Marçal mines (also known as Matagalls mines) are located in the Montseny massif, on the eastern slope of the Matagalls peak (1,700 m). Mining works were carried out at 1,250 to 1,350 m of altitude. These mines were mined until the mid-90s and have been partially restored. Currently this area belongs to the Montseny Natural Park, so the collection of specimens is totally prohibited.